Coolant

[Tom Christiansen]

Folks,

As far as I know, the coolant also provides some corrosion protection.
Thus, you'll be shooting yourself in the foot if you run on water only (or
too low concentration of coolant). I find that following the manufacturer's
recommendations to the letter usually gives less trouble.

I mean, come on guys... The cooling system on my 1994 90S is 2.9 gallons.
So I'll need 1.5 gallons of antifreeze. Two bottles of Prestone runs me
around $15 + tax (8.8% in WA). I understand that the Audi stuff is closer
to $17/gal so $34 + tax. A price difference of about $20. Is it really
worth the trouble to save $20 every two years...

I also don't understand why some people insist on buying the cheapest tires
on the market. After all their life depends on he performance of those
tires... But there's so much I don't understand... :-)

Tom

>Uhm, I may be wrong, but it seems to me that the 50/50 mix of coolant to
>H2O is ideal not just for subzero temps, but also for very high temps.
>I've got a coolant tester that reads the protection for both cold and
>hot, and both ranges max out as the percentage of coolant reaches 50%.
>
>If you don't believe me, this summer, drain and flush your system and
>then put in ONLY water. Your engine temps will NOT stay within the norm.
>I'm pretty sure the best mix, hot or cold, is 50/50.